55057445906 has 4 divisors (see below), whose sum is σ = 82586168862. Its totient is φ = 27528722952.

The previous prime is 55057445903. The next prime is 55057445921. The reversal of 55057445906 is 60954475055.

55057445906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 46567482025 + 8489963881 = 215795^2 + 92141^2 .

It is not an unprimeable number, because it can be changed into a prime (55057445903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13764361475 + ... + 13764361478.

Almost surely, 2^55057445906 is an apocalyptic number.

55057445906 is a deficient number, since it is larger than the sum of its proper divisors (27528722956).

55057445906 is a wasteful number, since it uses less digits than its factorization.

55057445906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27528722955.

The product of its (nonzero) digits is 3780000, while the sum is 50.

The spelling of 55057445906 in words is "fifty-five billion, fifty-seven million, four hundred forty-five thousand, nine hundred six".